Machine fob breaking and screening coal



J. BATTIN. BREAKING ANN SCREENING GoAL.

No. 3,292. Patented Oct. 6, 1843.

'UNITE sTATEs 'PATENT oEEroE.

JOSEPH BATTIN, OF PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR BREAKING AND SCREENING COAL.

Specification forming part of Letters Patent No. 3,292, dated October 6, 1843; Reissued `September To all whom z'tmay concern.'

Be it known that I, JOSEPH BATTIN, of the city of Philadelphia, in the State of Pennsylvania,`have invented a new and useful Machine for Eecting Simultaneously the Breaking and Screening of Ooal; and I do hereby declare that the following is a full and exact description thereof.

The breaking part of my machine con- -sists of two rollers of cast-iron, the peripheries of which are provided with teeth so placed as that in the revolution of the rollers, the teeth upon each of them shall stand opposite to the spaces formed by two contiguous teeth on the opposite roller. These rollers are geared together in order to cause them to preserve the same relative positions. lIhe coal to be broken is to be thrown into a hopper above the rollers, which rollers revolve inward toward the coal.

Below the rollers, a long screen is sus-` pended, in such manner as that it may have a vibrating motion communicated to it endwise, by means of revolving cams, or wipers. Immediately under the rollers the screen is furnished with fine meshes, which allow the dust, or minute particles, only, to pass through; next to this the meshes arelarger, and `through these the nut coal will pass; and this section is succeeded, in like manner, by a coarse screen, and so on to four, five, or more sizes. The screen is placed in an a inclined position, and the coal, consequently,

travels along itV as it is made to vibrate, and 1s thereby assorted into different sizes.

The accompanying drawing 1s a perspective represent-ation of the whole machine.`

A, A, are the two cast-iron breaking rollers, and B, thehopper into which the coal to be broken is thrown. i

O, O, are the two gearing wheels atiiXed on the shaft of the rollers, and by which they are made to turn simultaneously, and correct-ly.

D, is a fly-wheel, to regulate the motion.

E, E, is the screen, which is sustained by the rods, F, F, which are attached, by screw Irutr at their upperends, to the rock shafts,

A cam, or wiper, shaft I-I, crosses the frame of the machine, and carries the cams, or wipers, I. The shaft H,`is made to revolve by means of a pulley, J driven by a band that passes around a pulley on the shaft of one of the iron rollers. The wipers act against a piece of metal projecting up from the screen frame; to cause the screen to act etliciently,l it ought to be made to strike against a suitable spring as it is thrown forward by the wipers. Between each of the screens, a flat plate of metal, K, K,is interposed, toseparate the heaps of coal from each other. Motion may be communicated to the machine by any adequate power.

Having thus 4fully described the nature and operation of my machine for breaking and screening coal, what I claim as new therein, and desire to secure by Letters Patent, is

The manner in which I have arranged, and combined with each other, the breaking rollers and the screen, the respective parts being formed, and operating, substantially as herein set forth and made known.

JOSEPH BATTIN.

Vitnesses DANL. CLARKE, GEORGE EvErr.`

[FIRST PRINTED 1913.] i 

